Not trying to be an A-Hole here but there are a few Threads on this subject, do a search and read up on them.
I was thinking the same thing as you, all in one sub right, nice idea and because I have a Std Cab the extra amp was going to get in the way.
I looked at a few on line, went to Stores and listened to some but decided to run a shallow sub with minimum closed box. Box is small enough to fit behind the seats; now I need to decide on what side of the truck or in the middle.
This decision is not based on knowledge but just "I liked the sound of the shallow sub better".
Search and read.
Luck on your decision.
4x4, 5sp, Std Cab, Stepside, E4 Red
4” Lift - Coil-Overs, 6” SkyJacker Leafs - No Blocks (Mistake)
31 Spline FX4 Rear Axle, 4.56s and OX Locker, Hurst Shifter w/Optional Stick and "Made by Grev" alignment adapter